Skip to main content

Full text of "TechTopics 30"

See other formats


JULY - SEPTEMBER 1990 
ISSUE 30 



c 



TECHTOPICS 

© 1980 COMMODORE BUSINESS MACHINES INC 




Issue 30 - Jul-Aug-Sep 90 



Section 1 



INFO 




30/1-0.0 Index - Info Section Techtopics 30. 

30/1-1 .1 Service wananty policy numbers and conditions. 

30/1-2,1 Service training schedule, October thru December 1990. 

30/1-3.1 Amiga CPU one year warranty. 

30/1 -4. 1 Amiga accessories one year warranty. 

30/1-5.1 A3000 - PC60-II1, Field Replacement Units Policy. 



Issue 30 - Jul-Aug-Sep 90 



Section 2 



PARTS 



30/2-0.0 Index - Parts Section TechTopics Issue 30. 

30/2- 1 . 1 Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive. 

30/2-2.1 A3000 Spare parts list 



Issue 30 - Jul-Aug-Sep 90 



Section 3 



AMIGA 



30/3-0.0 Index - Amiga Section Techtopics Issue 30. 

30/3-1.1 A2091 Memory auto-configuation limitations. 

30/3-2.1 A2286 Problem with setup menu. 

30/3-3. 1 A2300 Genlock fix to work with A3000. 

30/3-3.2 Correction of, A2300 Genlock fix to woik with A3000. 

30/3-4. 1 Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive. 

30/3-5.1 A3000 Second floppy drive configuation. 

30/3-6. 1 A2300 Demo disk replacement 

30/3-7. 1 Genlock problem with A2000. 

30/3-8.1 One Megabyte Agnus use in Commodore A500 Computers. 

30/3-9. 1 A2060/A2065/A2232 System Schematics, CBM PN# 3 14042-01 . 

30/3-9.2 Enclosure: A2060/A2065/A2232 System Schem^cs. 



Issue 30 - Jul-Aug-Sep 90 



Section 4 



CBM 



30/4-0.0 
30/4-1.1 



Index - CBM Secdon Techtopics Issue 30. 
1571 Drive assemblies - Alps and Newtronics. 



Issue 30 - Jul-Aug-Sep 90 



Section 5 



PC 



30/5-0.0 Index - PC Section Techtopics Issue 30. 

30/5-1.0 PC40-ni PCB Revision 8.x - DMA channel 7 acknowledge signal. 

30/5-2.1 PC60-fflTechttps. 

30/5-3. 1 1930 VGA Color Monitor System Schematics, CBM PN# 3 14255-01. 

30/5-3.2 Enclosure: 1930 VGA Color Monitor System Schematics. 




A 



1 








□ 


INFO 










Issue 


30 - Jul-Aug-Sep 90 Section 1 - Info Page 1 


30/l-0.« 
30/1-1.1 
30/1-2.1 
30/1-2.2 
30/1-3.1 
30/1-4.1 
30/1-5.1 


Index - Info Section Techtopics 30. 

Service warranty policy numbers and conditions. 

Service training schedule, October thru December 1990. 

Enclosure: October thru December service training course outline. 

Amiga CPU one year warranty. 

Amiga accessories one year warranty. 

A3000 - PC60-U1, Field Replacement Units Policy. 


30/1-1.1 


Service warranty policy numbers and conditions. 

The Info section of Techtopics will include, as a standard feature, a list of active field 
fixes which are covered under warranty. 

This feature will always be the first bulletin in the Info section, and will be updated via 
the Service Bulletin Board, CTOC, whenever a change in the warranty status of field 
0xes is issued. 

A warranty policy number has been assigned to each active field fix covered under 
warranty. Effective immediately, all claims being submitted by authorized service 
centers must include the warranty policy number, as the part number, on the narda 
form. 

Agtiv? Commodore field service warrantv fixes, as of 2/5/90 


1) 1084S-P Monitor 

Warranty policy number - W1084- 1288 

(Instructions are included widi 1084S-P repair kit, CBM PN# 314891-01). 

2) A2000 Rev6.0 PCB 

Warranty poUcy number - W2000-0989 

(See Techtopic bulletins - 27/3-1.1, 27/3-2.1 & 27/3-3.1, in Amiga section 3, under 

A2000 past bulletins for details). 

3) A2286 AT Bridgeboard 

Warranty policy number - W2286-1289 

(See Techtopic bulletin - 28/3-3. 1 in Amiga section 3, under current bulletins for 

details). 



H AN UPDATE FOR THE SERVICE TECHNICIAN 




INFO 



Issue 30 - Jul-Aug-Sep 90 Section 1 - Info Page 2 



30/1-1.1 Service warranty policy numbers and conditions. (Cont.) 

4) PC30-ni Rev 1.4 PCB/Copiwcessor - 
Warranty policy number - WPC30-0590 
(See Techtopic bulletin 28/5-3.1 in PC section 5, undercurrent bulletins for details). 

30/1-2.1 Service training sctiedule, October thru December, 1990. 

1990 Training schedule, September thru December. Please contact John Dimeo for 
more information. 

Month Date Training Davs Location Products Status 

Oct 17-18 Wed-Thur Newark, NJ Amiga Open 

Oct 

Nov 

Nov 

Nov 

Dec 

30/1-2.2 Enclosure: October thru December service training course outline. 

Included with issue 30 is a course outline for the service training program, ftom 
October thru December 1990. 

30/1-3.1 Amiga CPU one year warranty. 

Effective April 2, 1990 Commodore will offer a one year Warranty on all Amiga 
computers. This new warranty will cover parts and labor on the CPU's. The warranty 
includes all units purchased after January 1, 1990. 

30/1-4.1 Amiga accessories one year warranty. 

Effective June 1, 1990 Commodore will offer a one year warranty on all Amiga 
accessories. This new warranty will cover parts and labor on the accessories. The 
warranty includes all units purchased after April 1, 1990. 



30-31 


Tue-Wed 


Miami, FL 


Amiga 


Open 


1-2 


Thur-Fri 


Miami, FL 


PC 


Open 


13-16 


Tue-Fri 


Minneapolis 


PC 


Open 


27-28 


Tue-Wed 


Detroit 


Amiga /PC 


Open 


11-14 


Tue-Fri 


Seattie 


Amiga /PC 


Open 



■ f AN UPDATE FOR THE SERVICE TECHNICIAN 




INFO 



Issue 30 - Jul-Aug-Sep 90 Section 1 - Info Page 3 

30/1-5.1 A3000 - PC60-m, Field Replacement Units Policy, 

Commodore is introducing a Field Replacement Units (FRU) policy, 
for Commodore's A3000 and PC60-III. This policy is to replace all 
defective major assemblies. For example; if a mother board is 
defective, it will be returned to Commodore. You must then reorder 
a new one. 

In the near future, the Field Replacement Unit (FRU) policy, will be implemented for 
all Commodore product lines. There will be a bulletin sent with all the details. 

Exceptions may be made to this policy for certain system upgrades. 



j:nd 30/1 





















^ 


WM PARTS 














Issue 30 


- Jul-Aug-Sep 90 Section 2 - Parts Page 1 






30/2-0.0 
30/2.1.1 
30/2-2.1 


Index - Parts Section TechTopics Issue 30. 

Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive. 

A3000 Spare parts list 




\ .J 


30/2-1.1 
30/2-2.1 


Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive. 

Sub 31 1833-01 to 314687-01. 

See Techtopic number 30/3-4.1 for more details. 

A3000 Spare parts list. 

Commodore Parts Department now has the following parts in stock. 

Part Description Dealer 
Number Billing 


Return 
Credit 




390500-02 Power Supply 155.25 
313250-01 PCB assy -Daughter PCB 57.10 
313310-02 PCB assy -16MHZ 1580.00 
313310-04 PCB assy - 25MHZ 1780.00 
313323-02 Keyboard 138.75 
313315-01 Drive assy. Floppy 130.00 
3 1 3440-01 Drive assy. Hard 40MB 675.00 
311836-03 Drive assy, HD Quantum P105S 100MB 1025.00 
311836-04 Drive assy, HDQuantum LP 1025.00 
604400-08 Button, A3000 Chinon FDD 1.30 


600.00 
700.00 

100.00 
200.00 
200.00 

End 30/2 


V 


^ 



AN UPDA TE FOR THE SERVICE TECHNICIAN 




AMIGA 



Issue 30 • Jul-Aug-Sep 90 Section 3 - Amiga Page 1 

30/3-0.0 Index - Amiga Section Techtopics Issue 30. 

30/3-1.1 A2091 Memory auto-conflguation limitations. 

30/3-2.1 A2286 Problem with setup menu. 

30/3-3,1 A2300 Genlock fix to work with A3000. 

30/3-3.2 Correction of, A2300 Genlock fix to work with A3000. 

30/3-4.1 Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive. 

30/3-5.1 A3000 Second floppy drive configuation. 

30/3-6.1 A2300 Demo disk replacement. 

30/3-7.1 Genlock problem with A2000. 

30/3-8.1 One Megabyte Agnus use in Commodore A500 Computers. 

30/3-9.1 A2060/A2065/A2232 System Schematics, CBM PN# 314042-01. 

30/3-9.2 Enclosure: A2060/A2065/A2232 System Schematics. 

30/3-1.1 A2091 Memory auto-conHguration limitations. 

The A2091 hard disk controller includes sockets for the installation of DRAM chips for 
memory expansion. Jumpers are present on the board, and are described in the users 
manual which support the presence of none, 512K, IM, 2M-Byte of memory, however 
only the none and the 2M-Byte settings work correctly in all system configurations. 

If either the 512K or IM setting is used the board may not function correctly, depending 
on whether other boards containing memory are present and are in slots that are 
configured by the system before the slot containing the A2091. When this situation 
occurs die wrong "bank" of chips on the A2091 is selected and the system will not boot. 

In most cases the initial installation of the A2091 will not cause any immediate problem, 
but concern exists that when the customer adds additional boards to the system, the 
confirguation will change and the A2091 board will no longer work. Obviously, this 
would lead to some confusion about which board is actually causing problems. 

We strongly recommend using only the none and 2M-byte settings, however if the 
smaller settings arc required then the best option is to put the A2091 board in the "first" 
slot. In all US production (rev4 and rcv6) motherboards, this is the slot nearest the power 
supply(not including the co-processor slot). On older motherboard revisions, it is the slot 
farthest away from the power supply. 



i AN UPDA TE FOR THE SERVICE TECHNICIAN^ 




AMIGA 



Issue 30 - Jul-Aug-Sep 90 Section 3 - Amiga Page 2 

30/3-2.1 A2286 Problem with setup menu. 

Problem description: 

Occasionally, the setup menu will not accept keyboard input. When this occurs, keyboard 
input to the Amiga side is also "garbled". In this case, the Amiga and PC sides arc 
confused about the state of the "Ctrl" and "Alt" keys. Two (2) work arounds have been 
identified: 

1. Hitting the "Ctrl" and "Alt" keys one (1) time each clears up the 
problem. If done in PC window, both PC and Amiga sides are fixed. If 
done on the Amiga side, only keystrokes on the Amiga side return to 
normal, 

2. Reboot the PC via "Ctrl+AIt+Del" and both PC and Amiga keyboard 
activity returns to normal. 

30/3-3.1 A2300 Genlock fix to work with A3000. 

This fix is to create the correct clock fi^quency of 28.375156MHZ needed. The fix must 
be done for die NTSC and PAL versions of the A2300 Genlock. 

1 . For NTSC A2300 Genlock (PN# 3 12803-01), A 0. luf axial capacitor 
must be connected from pin 6 of IC6, (signal N_VSYNC), to ground. 

2. For pal A2300 Genlock (PN# 3 12803-02), the above modification is 
also required in addition to the inclusion of a jumper wire shorting pin 
13ofIC4topin2ofICl. 

30/3-3.2 Correction of, A2300 Genlock fix to work with A3000. 

In Techtopics issue 29/3-9.1 and 30/3-3.1, make the following correction: 

In item #2 of the original Techtopic, the sentence "wire shorting pin 13 of IC4 to pin 2 of 
ICI" is incorrect, it should read, "wire shorting pin 13 of IC4 to pin 11 of ICl". The rest 
of the fix is correct. 



AN UPDATE FOR THE SERVICE TECHNICIAN 




AMIGA 



Issue 30 - Jul-Aug-Sep 90 Section 3 - Amiga Page 3 

30/3-4.1 Rodime 40MB Hard Drive sub to Quantum 40MB Hard Drive kit. 

Rodime 40MB Hard Drive CBM PN# 31 1833-01 is being subed to Quantum Prodrive 
40S Hard Drive kit, CBM PN# 314687-01. This kit contains: 

Part Number Description 



313440-01 40MB Quantum drive assy. 

313439-01 Cable, long SCSI 

3 1 2748-0 1 Insolator vibration 

905970-04 Nut keps #6-32 

To use this drive with the 2090/2090 A controller, remove jumpers Al and A2 on the 
Quantum drive before installing it. To install or prep the drive, use the install program 
found on the 2090/2090A hard disk software. During installation, make sure to make 
selections for a SCSI type drive and then select five (5), Quantum Prodrive 40S. 

30/3>5.1 A3000 Second drive conflguatioii. 

When adding a second 3 1/2" floppy drive to an A3000, the first floppy (dfO:) must be 
moved to the open slot to the right. The second floppy (dfl:) must be put where dfD: was 
origanally. 

Note: Make sure that the drive select on the second drive (dfl :) is configured to Dl, also 
jumper 351 must be moved to pins 1 and 2 to enable the drive. 

If you need further information, please contact the 800 Technical Support line. 

30/3-6.1 A2300 Demo disk replacement. 

The Genlock demo disk supplied with your A2300 has been revised. Certain items 
mentioned in chapter two of the manual have been removed to provide the space required 
for this inprovement. These include the Animations demo drawer and the Notepad tool. 

The new disk (part number 317718-02) fixes some incompatibilites with software 2.0. 

To get your replacement disk, send your old disk (part number 317718-01) to the service 
department, attention Tony Greco. Please be sure to include your return address. As 
soon as the old disk is received, the new disk will be sent out 



H AN UPDATE FOR THE SERVICE TECHNICIAN 



^: Kl AMIGA 




Issue 30 - Jul-Aug-Sep 90 Section 3 - Amiga Page 4 

30/3-7.1 Genlock problem with A2000. 

We have received reports that some A2000's may have been shipped with the Tick signal 
(J300), jumpered incorrectly. This may cause major problems with third party Genlocks. 
If problems arise during genlock installation, please verify that pins 1 and 2 of J300 are 
jumpered. 

30/3-8.1 One Megabyte Agnus use in Commodore A500 Computers. 

Commodore Business Machines does not support the One Megabyte addressing feature 
of the Fat Agnus 8372 IC in A500 Computers. 

Regardless of the version of Fat Agnus, all ASOO's have been factory jumper set to be 
functionally identical. 

8370 Fat Agnus chips are used on rev 5 boards with 256K x 1 DRAMS. 8372 Fat Agnus 
chips are used on rev 6a boards with 256K x 4 DRAMS. The boards are functionally 
interchangable. Each will support 5 12K of chip RAM and 5 12K of expansion RAM 
with an A501 installed. 

Enabling the One Megabyte feature, at the customers' request, will void the warranty. 
Instructions detailing implementation of the One Megabyte addressing have been 
circulated without Official Approval and Commodore does not assume any liability 
for damages resulting from this mode of operation in the A500. 

30/3-9.1 A2060/A2065/A2232 System Schematics, CBM PN# 314042-01 Release. 

Mailed with Techtopics issue 30, for Amiga authorized service centers only, arc the 
A2060/A2065/A2232 System Schematics. 

30/3-9.2 Enclosure: A2060/A2065/A2232 System Schematics. 

Enclosed in Techtopics issue 30, CBM PN# 3 14042-01, A2060/A2065/A2232 System 
Schematics. 

End 30/3 



AN UPDATB FOR THE SERVICE TECHNICIAN 




CBM 



Issue 30 - Jul-Aug-Sep 90 



Section 4 • CBM 



Page 1 



30/4-0.0 Index - CBM Section Techtopics Issue 30. 
30/4-1.1 1571 Drive Assemblies - Alps and Newtronics. 



30/4-1.1 1571 Drive Assemblies - Alps and Newtronics. 

1571 Drives use two types of drive assemblies. 

1) CBM PN# 252092-01 Drive assy -Alps 

2) CBM PN# 252083-01 Drive assy - Newtronics 

Most units in the United States use the Newtronics type of drive. The Alps drive does 
not fit in the Newtronics bezel, and visa- versa. Please take note. 



End 30/4 



AN UPDA TE FOR THE SERVICE TECHNICIAN 



^^ 




Issue 30 - Jul-Aug-Sep 90 



Section 5 - PC 



Page 1 



30/5-0.0 Index - PC Section Techtopics fesue 30. 

30/5-1.1 PC40-III PCB Revision 8.x - DMA channel 7 acknowledge signal. 

30/5-2.1 PC60-in Techtips. 

30/5-3.1 1930 VGA Color Monitor System Schematics, CBM PN# 314255-01. 

30/5-3.2 Enclosure: 1930 VGA Color Monitor System Schematics. 

30/5-1.1 PC40-in PCB Revision 8.x - DMA channel 7 acknowledge signal. 

Expansion hardware which utilizes DMA channel 7 (DRQ7, NDACK7' on PC40) 
require a modification to the PC40-in revision 8.x PCB. 

Connect jumper, on trace side of PCB, from U803 pin #7 (74fl38, see page 5-26, 
PC40-III Service manual) to CN502 pin #32 (expansion bus, see page 5-22, PC40-in 
Service manual). This modification, with all previous modifications, makes the PCB 
revision 8.2c. 

This is considered part of third party expansion card installation and is not covered under 
warranty. 



30/5-2.1 PC60-m Techtips. 



1) When disabling the on board Hard Drive on the PC60-in, place a jumper from pin 1 
to pin 2 of J42. (located above J41, Hard Drive connector. On schmatics. Located 
off pin 15 of U85). See page 29 (Sheetl6 of 20) PC60-m System Schematics. 

2) When installing a second Hard Drive to the PC60-in, set the jumpers on the Hard 
Drive as follows: 

Meaning 

Single drive configuation 

Master - in dual drive setup 

Slave - in dual drive setup 

Test selection (self-seek) DO NOT USE! 



Jumper 


Position 


DS 


SS 


1 





1 


1 











1 



1 = Jumper installed = No jumper installed 

Note: This is for Quantum Prodrive series Hard Drives only! 



AN UPDATE FOR THE SERVICE TECHNICIAN 




PC 



Issue 30 - Jul-Aug-Sep 90 



Section 5 - PC 



Page 2 



30/5-2.1 



3) PC60-in Techtips. 



(Cont.) 



Jumper J33 and J34 indicate if a 387 coprocessor is installed. (See page 15 in 
PC60-III System Schematics) 

When installing an 387, move jumpers from 1-2 to 2-3 positions on both J33 and J34. 

Pin 1 is indicated by the cut edge on the white silk screen outline of the socket. Note 
that outer-edge pin holes in socket are not used with INTEL 80387. They are used 
with WYTEK 3167. 



30/5.3.1 1930 VGA Color Monitor System Schematics, CBM PN# 314255-01 Release. 

Mailed with Techtopics issue 30, for Amiga authorized service centers only, are the 
1950 VGA Color Monitor System Schematics. 

30/5-3.2 Enclosure: 1930 VGA Color Monitor System Schematics. 

Enclosed in Techtopics issue 30, CBM PN# 314255-01, 1930 VGA Color Monitor 
System Schematics. 



Jlnd 30/5